Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/62752590240.pdf In PDF document text

  • https://gulfsupremesa.com/ckfinder/userfiles/files/78238223401.pdfIn PDF document text
  • http://sanfrancescovet.com/userfiles/files/30325743492.pdfIn PDF document text
  • http://china-spec.ru/userfiles/file/valegijiw.pdfIn PDF document text
  • http://erfaspot.com/resimler/files/4498163713.pdfIn PDF document text
  • http://www.offshoreyachts.net/web_upload/editor/files/36513844622.pdfIn PDF document text
  • http://mylivediamondinventory.com/uploads/files/67427080441.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/5475a95a1f655aecd78c2f7a3b3662b5/56271096488.pdfIn PDF document text
  • http://nissanotogovap.vn/uploads/images/files/fuwakalos.pdfIn PDF document text
  • http://hwangtosidae.com/userData/ebizro_board/file/55623230789.pdfIn PDF document text
  • http://rvhifi.cz/files/file/39129235586.pdfIn PDF document text
  • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613535f25a615---kedudu.pdfIn PDF document text
  • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135953e68e88---binukazowebobaja.pdfIn PDF document text
  • http://santehnika34.ru/images/file/baxaxibazijes.pdfIn PDF document text
  • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b38993f9d7---88187044180.pdfIn PDF document text
  • http://ljjxmining.com/uploadfile/file///2021091719444515.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/58094864162.pdfIn PDF document text
  • http://miryangpension.com/FileData/ckfinder/files/20210903_7F360E6588547C9C.pdfIn PDF document text
  • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/lagufefevodupiruneruz.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161443bdab4f84---sukibifopitif.pdfIn PDF document text
  • http://aftckwt.com/uploads/file/4683271493.pdfIn PDF document text
  • http://phannhan.vn/files/usersfiles/files/kutuxufi.pdfIn PDF document text
  • http://sashtraayurveda.com/ckfinder/userfiles/files/puzalifopusefonolumemob.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/42690661560.pdfIn PDF document text
  • https://iieng.org/editor/ckfinder/userfiles/files/10733808428.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=psp+emulator+androidPDF link annotation
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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